JPH0775454A - Apparatus for covering mulching film - Google Patents

Abstract

PURPOSE:To provide a mulching film covering apparatus to cover the soil surface of a field by surely overlapping a mulching film laid by the former laying step to the mulching film to be laid by the present step. CONSTITUTION:This mulching film covering apparatus to cover the soil surface of a field is provided with a guide roller 15 for a single-sided adhesive tape 14 near the back of a mulching film roll, a holding roller 16 for the single-sided adhesive tape between the mulching film roll and the guide roller and a cutting apparatus 44 for the single-sided adhesive tape between the guide roller and an elastic wheel 17 for pressing. The single-sided adhesive tape is delivered in the direction opposite to the delivery direction of two mulching films on the field surface, the mulching films are pressed and bonded with the elastic pressing wheel while stretching the mulching films with a tamping wheel 12, the single-sided adhesive tape is cut with the cutter after the end of the work of a row and the bonding unit 19 is exchanged with a soil-covering unit 20 for the work of the next row.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mulch film coating apparatus for coating the surface of soil in a field.

[0002]

2. Description of the Related Art Conventionally, it has been known to cover the entire surface of a field with a mulch film in order to prevent the evaporation of chemicals after cultivating vegetables and soil sterilization. , To prevent peeling of the mulch film,
A method is used in which the pressing soil is placed on both ends of the mulch film and fixed.

[0003]

However, in the above-mentioned prior art, in order to prevent peeling of the mulch film, both ends of the mulch film are covered with soil to provide the effect of holding soil. Depending on the amount of water in the soil, the effect of pressing soil may be insufficient, or due to the inclination of the field in the direction orthogonal to the work progress direction, the soil cover amount at the left and right ends of the mulch film may differ, making it difficult to adjust. Could not be held. In addition, since the force for holding and holding the mulch film is particularly weak during the operation under strong wind, the mulch film is easily peeled off, and the function as a cultivation floor for vegetables and the effect of soil disinfection can be sufficiently obtained. Therefore, the effect of mulch film coating could not be fully exerted.

As one constitution for solving the above-mentioned problems, the multi-film coated in the previous step and the multi-film coated in the present step are superposed and adhered by a single-sided adhesive tape to form a multi-layer. It is an object of the present invention to provide a multi-film coating device capable of securely holding and holding a multi-film while preventing pressing soil from appearing on the film surface.

[0005]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, the present invention is towed by a mobile agricultural machine, the surface of the soil in the field is covered with a mulch film, while covering the ridge groove at one outer end of the mulch film, the cover soil that is offset to the hem of the ridge. To provide a body, and to bond the other side with the mulch film on the side covered with soil in the previous step,
In a multi-film coating device configured to bond two multi-films behind a multi-film wound in a roll shape with a single-sided adhesive tape rolling on the ridge surface, a single-sided adhesive tape near the rear of the multi-film roll Guide roller, the roll of single-sided adhesive tape is installed above the multi-film roll, and the single-sided adhesive tape is fed out in the direction opposite to the feeding direction of the multi-film roll. The soil cover unit is composed of a tread wheel and a soil cover disc, and a transfer mechanism for moving the adhesive unit and the soil cover unit to contact the ground is provided, and a holding roller for a single-sided adhesive tape between the multi-film roll and the guide roller. Also, a single-sided adhesive is provided between the guide roller and the elastic body compression wheel. Equipped with a cutting device for the loop, and an elastic body compression wheel that adheres two multi-films and one-sided adhesive tape behind the guide roller and rolls with pressure from the upper side. The tread wheel is provided in front of the body pressure wheel.

[0006]

Next, the operation will be described. In the first outward process, the left and right adhesive units 19 and 19 are housed and fixed upward, and the soil covering units 20 and 20 are fixed downward, and the multi-film coating device 3 is operated. The sub-soiler 5 is used at the same time as making a groove in the field by the gauge wheel 7 that determines the position.
The soil that has been compacted by the rear wheels 40, 40 of the tractor 1 is softened by 5, and the mulch film 9'is pressed and pulled at the groove by the gauge wheel 7, 7 to cover the field, and the soil disc is covered. 21.21 is used to cover both sides of the mulch film 9 ', and at this time,
The soil covering shield plates 23, 23 protect the upper surface of the ridges of the mulch film 9'to prevent the soil from flying. Further, by the crushing rollers 24, 24
The surface of the soil covered with is made flat.

When performing the multi-film coating operation in the next return process, the multi-film 9'covered in the forward process is used.
The adhesive unit 19 on the side overlapping with is moved downward through the rotating mechanism, and the soil covering unit 20 is accommodated and fixed upward through the rotating mechanism. When the adhesive unit 19 and the soil covering unit 20 are downward, The soil covering unit 20 projects rearward, and the soil covering disk 21 of the soil covering unit 20
Is located at a position where it does not interfere with the adhesive unit 19, so that it is fixed to the outer upper side at right angles to the traveling direction via a rotating mechanism, and is placed outside the upper end of the mulch film 9'covering the soil adhered to the soil cover disk 21. It is dropped and removed, and then returned to the lower position to store and fix the soil covering unit 20 upward.

Then, the one-sided adhesive tape 14 wound in a roll shape of the adhesive unit 19 is pulled out, and the multi-film wound from the roll-shaped multi-film 9 rolled on the surface of the field and the forward process. The coated mulch film 9'is adhered on the surface of the field.

In this way, the multi-film 9'covered in the outward process and the multi-film 9 covered in the return process are superposed and adhered, and the multi-film coating work is sequentially carried out. It is fed through between the guide roller 15 and the holding roller 16,
Press the elastic compression wheel 17 to hold the mulch film 9 '・ 9
Is surely adhered, and the single-sided adhesive tape 14 is cut by operating the cutting device 44 at the end of the return path process.

In the following reciprocating path process, after the adhesive unit 19 on the side overlapping the mulch film 9'covered in the previous process is moved downward and the soil covering unit 20 removes the soil adhered to the soil covering disk 21. Each time it is stored and fixed upwards, the adhesion unit 19 on the side where the mulch film 9 '/ 9 is bonded in the previous process on the other side is stored and fixed upwards, and the soil covering unit 20 is sequentially moved so as to move downward. Then, the transfer operation is performed, the multi-film 9'covered in the previous step and the multi-film 9 covered in the present step are superposed, and the multi-film coating operation is performed while adhering with the single-sided adhesive tape 14.

[0011]

EXAMPLES Next, examples will be described. FIG. 1 is a side view showing a coating work state of a first outward process in a multi-film coating apparatus of the present invention, FIG. 2 is a plan view showing a coating work state of the same outward process, and FIG. 3 is a coating work state of a returning process. Similarly, FIG. 4 is a plan view showing a covering work state in the return path process.

1, FIG. 2, FIG. 3, and FIG. 4, the rear part of the tractor 1, which is a mobile agricultural machine, is spread over the entire field through a working machine mounting device 2 composed of a three-point link and a three-point hitch. A multi-film coating device 3 for coating the multi-film 9 is connected, and a tool bar 4 orthogonal to the traveling direction of the tractor 1 is laterally provided at the frontmost part of the multi-film coating device 3. At a position facing the rear wheels 40, 40 on both front sides of the tool bar 4, the soil compacted by the rear wheels 40, 40 is softened by the mounting members 39, 39 and moved up and down arbitrarily. The sub-soiler 5, which can be fixed, is attached and fixed.

A pair of left and right connecting frames 6.6 extending rearward are fixedly provided at both ends of the tool bar 4, and the front end side of the connecting frames 6.6 includes a multi-film coating device 3 A gauge wheel that can support the weight and make a groove by pushing the surface of the soil to move it up and down and fix it
A mounting member 8 for supporting the is provided. A multi-film 9 wound in a roll shape is arranged on the rear end side of the connection frames 6 and 6.
Are held by holders 11 and 11 which are vertically movable and fixedly supported by supporting members 10 and 10 provided on the connecting frame 6 and 6.

Left and right frames 34, 34 projecting to both sides are fixedly provided at the rear end portions of the connection frames 6, 6, and the left and right frames 34, 34 are provided with an adhesive unit pivotal support portion 35. 35, soil cover unit pivot 36, 36
Is projected to the rear. The adhesive unit pivot portion 35
The adhesive unit frames 30 and 30 which are vertically rotatable via the pivot shafts 35a and 35a and which project rearward are disposed on the reference numeral 35, and the soil cover unit pivot portions 36 and 36 include the pivot shafts 36a and 36a. The soil covering unit frames 32, 32 are arranged so as to be rotatable up and down and project rearward, and the springs 31, 31 are provided between the adhesive unit pivot portions 35, 35 and the adhesive unit frames 30, 30. Is stretched, and springs 33, 33 are stretched between the soil cover unit pivotally supporting portions 36, 36 and the soil cover unit frames 32, 32.

As shown in FIGS. 1 and 2, the tread pressure is applied to the front portion of the soil covering unit frame 32, 32 by pressing and pulling the mulch film 9 at the groove formed by the gauge wheel 7 7. The wheels 12, 12 are arranged so as to be vertically movable and adjustable in the front-rear direction so that they can be fixed. The treading wheels 12, 12 have their base ends covered with the soil cover unit frames 32, 32.
Double arm 38.38 consisting of a fixed arm and a swinging arm fixed to the support member 13 provided on the
The dual arms 38, 38 are supported by the tip of the springs 26, 26 and have the rods 27, 27 fitted with the springs 26, 26, and press the tread wheel 12, 12 downward.

At the midpoints of the soil cover unit frames 32, 32, soil cover shield plates 23, 23 for shielding the upper surface of the flat ridges of the mulch film 9 from being soiled, are provided. 23 and 23 are supported by support members 25 and 25 provided on the soil covering unit frame 32 and 32 via support arms 41 and 41 so as to be vertically movable and front and rear adjustable and fixed. At the rear part of the soil cover unit frame 32, 32, there is a soil cover disc 21.2 which is a soil cover body for covering both ends of the mulch film 9.
1 is provided, and the soil-covering discs 21 and 21 are provided on the soil-covering unit frame 32 and 32, and are freely rotatable and upward and backward adjustable via support members 22 and 22 having a rotating mechanism. It is supported so that it can be fixed.

Further, roller support arms 42, 42 projecting rearward are fixedly provided at midpoints of the support arms 41, 41 of the soil cover shield plates 23, 23, and the tip ends of the roller support arms 42, 42 are fixed. The soil cover disc 21
Squeezing rollers 24, 24 are provided for flattening the surface of the soil that has been offset by 21. The compression roller 2
4 and 24 are supported together with the soil-covering shield plates 23 and 23 via support members 25 and 25 so as to be vertically movable and front-back adjustable so as to be fixed.

Then, as shown in FIGS. 3 and 4, the multi-film 9'covered in the previous step and the multi-film 9 covered in the present step are not covered with soil at the rear of the adhesive unit frames 30, 30. The one-sided adhesive tapes 14 and 14 wound in a roll shape for overlapping and adhering with each other, the multi-film 9'covered by the one-sided adhesive tape 14 in the previous step and the multi-film 9 covered in the present step Elastic body compression wheels 17, 17 are provided for suppressing the adhesion position t that is overlapped and adhered.

The elastic body compression wheels 17 and 17 have a double arm 37 composed of a fixed arm and a swinging arm whose base ends are fixedly mounted on supporting members 18 and 18 provided on the adhesive unit frame 30 and 30, respectively. .The double arm 3 is supported by the tip of 37 so as to be vertically movable and front and rear adjustable and fixed.
Rod 29 in which spring 28, 28 is externally fitted to 7.37
・ 29 is installed.

The one-sided adhesive tapes 14, 14 wound in a roll are supported by the double arms 37, 37,
The multi-film 9 wound in a roll shape is configured to be adhered to the multi-film 9 while being held at a constant angle by the guide rollers 15 and 15, which are in close proximity to each other. 14 is sandwiched by the holding rollers 16 and 16 which are in contact with the front of the guide rollers 15 and 15. The guide roller 1
5, 15 and the holding rollers 16, 16 are pressed against the mulch film 9 by the springs 28, 28 and supported by the supporting members 43, 43.
3 is fixed to the double arm 37.

As described above, at the rear of the left and right connecting frames 6, 6, an adhesive unit 19 including a guide roller 15, a holding roller 16, a single-sided adhesive tape 14 and an elastic body compression wheel 17, a tread wheel 12, and a soil cover disk 21 are provided. A soil covering unit 20 including a soil covering plate 23 and a compression roller 24.
Are arranged from the outside, and the adhering unit 19 has a rotation mechanism with a pivot shaft 35a of the adhering unit pivot portion 35 as a fulcrum.
By the action of the pulling force of the spring 31 stretched between the adhesive unit frame 30 and the adhesive unit frame 30, the soil covering unit 20 is configured to be maintained in the upper position and the lower position around the fulcrum bar. 36 pivots 3
A rotation mechanism is configured with 6a as a fulcrum, and a spring 33 stretched between the soil cover unit pivot portion 36 and the soil cover unit frame 32 can maintain the upper position and the lower position around the fulcrum. Has been done.

In the above-mentioned structure, when the tractor 1 is run in the field to pull the mulch film covering device 3 in order to perform the mulch film covering operation on the entire surface of the field, first, in the first outbound route, as shown in FIG. As shown in FIG. 2, the left and right adhesive units 19 and 19 are housed and fixed upward, and the soil covering units 20 and 20 are fixed downward, and the gauge wheel 7 and 7 for determining the position of the multi-film covering device 3 are used for the field. At the same time as making a groove on the sub-soiler 5
The soil that has been compacted by the rear wheels 40 of the tractor 1 is softened by 5 and the mulch film 9'is pressed and pulled at the groove by the gauge wheel 7 7 to cover the field, and the soil disc is covered. 21.21 is used to cover both sides of the mulch film 9 ', and at this time,
The soil-covering shield plates 23, 23 protect the upper surface of the flat ridges of the mulch film 9'from dust. Further, by the crushing rollers 24, 24
The surface of the soil covered with is made flat.

In this way, the left and right soil covering units 20, 20
When the multi-film coating work of the forward process is sequentially performed by the following, when the multi-film coating work of the next return process is performed, first, as shown in FIGS. The adhering unit 19 on the overlapping side is moved downward through the rotating mechanism, and the soil covering unit 20 is accommodated and fixed upward through the rotating mechanism. When the adhesive unit 19 and the soil covering unit 20 are downward, the soil covering unit 20 is covered. The unit 20 projects rearward, and the soil covering unit 2
Since the 0 soil-covering disc 21 does not interfere with the adhesive unit 19, the mulch film 9'covered with soil attached to the soil-covering disc 21 is pivotally fixed to the outer side at a right angle to the traveling direction through a rotating mechanism. Then, the soil covering unit 20 is housed and fixed upward by dropping the soil covering unit 20 to the outside and then returning it to the lower position.

Then, the one-sided adhesive tape 14 wound in a roll shape of the adhesive unit 19 is pulled out, and the multi-film rolled out from the roll-shaped multi-film 9 rolled on the surface of the field and the forward process. The coated mulch film 9'is adhered on the surface of the field.

In this way, the multi-film 9'covered in the outward process and the multi-film 9 covered in the return process are superposed and adhered, and the multi-film covering work is sequentially carried out. Adhesive tape 1
4 is supplied through between the guide roller 15 and the holding roller 16 and is pressed by the elastic body compression wheel 17 to securely adhere the mulch film 9 ′ / 9, and at the end of the return path process, the cutting device 44 is provided. Operate the single-sided adhesive tape 1
4 is cut.

In the following reciprocating step, the adhesive unit 1 on the side overlapping the mulch film 9'covered in the previous step
9 is moved downward, the soil covering unit 20 is removed and the soil adhered to the soil covering disk 21 is stored and fixed upward, and the mulching film 9 ′ / 9 is bonded in the previous step on the other side. Unit 19 is stored and fixed upwards,
A switching operation is performed every time the soil covering unit 20 is sequentially moved so as to move downward, the multi-film 9'covered in the previous step and the multi-film 9 covered in the present step are overlapped, and the single-sided adhesive tape 14 is attached. The mulch film coating work is performed while adhering at.

[0027]

Since the present invention is constructed as described above, it has the following effects. That is, by constructing as in claim 1, one side of the mulch film is covered with tread and the other side not covered with the mulch film is adhered to the mulch film covered in the previous step with a single-sided adhesive tape to cover the entire surface of the field. Since the pressing soil covered with the mulch film and covered soil is also covered with the mulch film, it is necessary to prevent the mulching film from peeling off due to scattering of the pressing soil due to external pressure such as wind and rain, and the loss of the pressing effect. Since the guide roller makes the adhesive posture of the one-sided adhesive tape constant, the adhesive can be stably adhered on the field surface.

Further, according to the second aspect of the present invention, the mulch film roll can be rolled on the surface of the field, can be operated even under strong winds, and the single-sided adhesive tape can be provided above the mulch film roll. Can be used effectively.

According to the third aspect of the present invention, the adhesive unit on the side overlapping the mulch film coated in the previous step is moved downward, and the soil covering unit is stored and fixed upward so that the other side's previous step is performed. Store and fix the adhesive unit on the side where the multi-film adhesive work was done with,
A transfer operation is performed every time the soil covering unit is moved downward in sequence, and the multi-film coated in the previous step and the multi-film coated in the current step are overlapped and adhered with a single-sided adhesive tape. Since the multi-film coating operation is performed, it becomes possible to easily and continuously perform the adhesion operation.

Further, according to the present invention, when the work of one ridge is completed, the cutting device for the single-sided adhesive tape is operated to cut the single-sided adhesive tape, and the one-sided adhesive tape has an end portion at the end. Since a holding roller is provided,
The single-sided adhesive tape does not adhere to the mulch film or the like, and the single-sided adhesive tape can be easily taken out even in the next step.

Further, according to the present invention, it is not necessary for an assistant to cut the single-sided adhesive tape in an unnatural posture in a narrow and low place, and the single-sided adhesive tape can be easily taken out in the next step. become.

Further, according to the sixth aspect of the present invention, the mulch film coated in the previous step and the mulch film coated in the present step are overlapped with each other and adhered on the surface of the field with the single-sided adhesive tape. Since the multi-film coating operation is performed, the bonding position is always on the field surface, and the single-sided adhesive tape can be continuously bonded without bonding to the multi-film or the like.

Further, according to the present invention, since the tread wheel is provided on the inner side of the guide roller and in front of the elastic control wheel, the mulch film becomes taut and is less likely to be wrinkled. However, since the mulch film is not blown off, the mulch film covering work can be performed continuously.

[Brief description of drawings]

FIG. 1 is a side view showing a coating operation state in a first outward process in a mulch film coating apparatus of the present invention.

FIG. 2 is a plan view showing a covering work state in the outward process as well.

FIG. 3 is a side view showing a covering work state in the return path process.

FIG. 4 is a plan view showing a covering work state in the returning path process.

[Explanation of symbols]

 3 Multi-Film Covering Device 9 '/ 9 Multi-Film 12 Treading Wheel 14 Single-sided Adhesive Tape 15 Guide Roller 16 Holding Roller 17 Elastic Compression Wheel 19 Adhesive Unit 20 Soil Covering Unit 21 Soil Covering Disk 44 Cutting Device

Claims (7)

[Claims] 1. A covering body that is pulled by a mobile agricultural machine, covers the surface of the soil in the field with a mulch film, covers the ridge groove at one outer end of the mulch film, and shifts to the hem of the ridge. In order to bond the other side with the mulch film on the side covered with soil in the previous step, two mulch films behind the mulch film rolled in a roll with a single-sided adhesive tape rolling on the ridge surface. In the multi-film coating device configured to adhere the multi-film coating device, a guide roller of a single-sided adhesive tape is provided near the rear of the multi-film roll. 2. A multi-film coating device, wherein the roll of the single-sided adhesive tape according to claim 1 is provided above the multi-film roll, and the single-sided adhesive tape is fed out in a direction opposite to the feeding direction of the multi-film roll. . 3. The adhesive unit is constituted by the guide roller and the elastic body compression wheel according to claim 1, and the soil covering unit is constituted by the treading wheel and the soil covering disk, and the adhesive unit and the soil covering unit are moved to be grounded. A multi-film coating device having a transfer mechanism. 4. A multi-film coating device, wherein a holding roller for a single-sided adhesive tape is provided between the multi-film roll according to claim 1 and a guide roller. 5. A multi-film coating device comprising a single-sided adhesive tape cutting device provided between the guide roller according to claim 1 and the elastic body compression wheel. 6. A multi-film provided with an elastic body compression wheel, which adheres two multi-films and a single-sided adhesive tape behind the guide roller according to claim 1 and rolls under pressure from above. Coating equipment. 7. A multi-film coating device, wherein a tread wheel is provided inward of the guide roller according to claim 1 and in front of the elastic body compression wheel.